As you gain points, you rise through the levels. At each level, there are more circles, and they all move faster; the game gets more and more intense.

When you touch a filled circle, you lose a life. When you run out of lives, it's game over!

There are four graphics modes; calm, crazy (epilepsy warning!), disco, and white. To be honest, none of the modes are the most epileptic-friendly ever, due to the nature of the game, but without doubt the Crazy mode is off-limits to anyone who has ever even looked at the sun for too long and got dizzy.

The music is by me. Sound effects were made with BFXR. Font is "Alte Haas Grotesk" from dafont.com.